Authors: Yanbo Qiao Ning Da Danping Chen Wenbo Ma Qinling Zhou Jianrong Qiu
Publish Date: 2009/05/29
Volume: 44, Issue: 15, Pages: 4026-4030
Abstract
The Nd3+ Yb3+doped and Nd3+–Yb3+codoped high silica glasses HSGs were fabricated by sintering porous glasses impregnated with Nd3+ and Yb3+ ions solutions The Judd–Ofelt theory was used to study the spectroscopic properties of Nd3+doped HSGs Large parameter Ω2 of Nd3+doped HSGs suggests a lower centrosymmetric coordination environment around the Nd3+ in HSG The spontaneous emission probability and emission crosssection σem of Yb3+doped HSGs are obtained A broad emission band from 950 to 1100 nm was detected when the Nd3+–Yb3+codoped HSG was excited by 808 nm LD The energy transfer process from Nd3+ to Yb3+ in HSG was described in this paper
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